Countdown Intervalometer is an easy to use intervalometer script for CHDK. This script should work with most Canon cameras that run CHDK. Special care was taken to avoid using PROPCASE features that would cause compatibility problems with some cameras.

Note: If you want to record longer timelapse sequences with your Canon Powershot camera you should look into getting an external wall power module. It is also possible to buy / make a larger external battery pack that will power your camera for days.

In the CHDK Script menu there are two parameters you can change. The first is Interval in Sec and the second is Number of Shots. If you want to take pictures forever, or until your memory card is full set Number of Shots to zero.

If you want to take pictures as fast as possible set the camera to continuous photo mode and set the Interval in Sec parameter to zero.